What does this mean?

All images, video, audio and other media should specify appropriate alternative text.

For example:

<img src="apple.png" alt="Apple">

We recommend you read this comprehensive guide to writing alternative text by WebAIM.

The W3C also provide more information on how to satisfy this check in Technique H37.

93.8% done

How close this website is to fixing this issue.

Media Alternative text Found on page Issues
Image without alternative text No text 1
1 distinct issue was found in the sample of 16 web pages.
More results from Mohawk Industries